Device for converting motion



(No Model.)

L. PBTTERSON. DEVIGB FOR GONVBRTING MOTION.

H frzvenor L11/almas? Petersoyi Patented July 25, 1882.

UNITED STATES PATENT OFFICE.

LUDWIG PETTEBSON, OF CHICAGO, ILLINOIS.

DEVICE FOR OONVERTING MOTION.

SIEICIFICA'JJION' forming part of Letters Patent No. 261,757, datedJ'uly 25, 1882.

` Application med october es. 1881. (No model.)

To all whom it may concer-n:

Be it known that I, LUDWIG IETTERSON, a subject of the King of Norway,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Mechanisms forConverting Motion, which are set forth in the following specification,reference being had to the accompanying drawings, in which- Figurel isaside elevation of a windmill embodying my improvements; Fig. 2, atransverse section, on an enlarged scale, taken on the line :rw of Fig.l; Fig. 3, a vertical longitudinalsection,onan enlarged scale,of theupper part of the windmill, portions of the vanes being broken off;` andFig. 4, a top edge view of the vanes and friction-brake.

My invention relates to mechanism for con- Verting two independentrotary motions of a shaft into a single rotary motion, or vice versa.

My invention consists of a pair of shafts concentric with each other andwith tne pivot on which a third shaft is mounted, which latter shaftcauses the two former shafts to rotate in Opposite directions relativelyto each other.

Myinvyention further consists of a combination, with the above-outlinedmechanism,of a fixedly-mounted shaft, to which said concentric shaftsare geared.

For the sake of clearly illustrating the utility and mode of operationof my invention, I have shown it in the drawings, and will describe itas it appears when applied to a wind- 'mi1l, though I do not wish to beunderstood as confining myself to such application of said invention.When thus embodied the doublyrotating shaft becomes the sail-spindle anditsI base-plate the windmill-cap.

In the drawings, Arepresents the main Aframe ot' the windmill, on thetop plate, a, of

which is a depending boss, a', surrounding and forming a bearing for theshouldered and hollow pivot a2 ofthe windmill-cap a3. Within this hollowpivot is sheathed the shaft B, itself sheathing the shaft C, which hassuitable bearings at its lower end.

On the lower end Ot' the shaft B is keyed a. beveled cog-wheel, b,whichv meshes with the beveled cog-wheel d on the xedly-mounted shaft D,and on the opposite side of this wheel d is meshed therewith the beveledcog-wheel o, which is keyed to the shaft C.

At the upper end of the shaft B is keyed a spur-wheel, E, meshing withthe spur-wheel e, which forms the lower end of a hollow shaft, e',sleeved ou a vertical pivot or shaft, e2, rising from the cap a3.

The shaft e terminates at its upper end in a beveled cog-wheel, e3,meshing with a beveled cog-wheel, e4, which forms the end of a hollowshaft, e5, sleeved on the sail-spindle G, and terminating at its otherend in a beveled cogwheel, e6.

At the upper end of the shaft C, above the wheel E, is keyed aspur-wheel, F, meshing with the spur-wheel f, which forms the lower endof a hollow shaft, f', sleeved on a vertical pivot or shaft, f2, risingfrom the cap a3.

Y The sha-ftf terminates at its upper end in a beveled cog-wheel, f3,meshing with a beveled cog-wheel, f4, whichA forms the end of a hollowshaft, f5, sleeved on the'sail-spindle G, and terminating at its otherend in a'beveled cog-wheel, f6.

The corresponding shafts of these opposite systems of gearing have equalspeed.

Between the wheels e6 and f6, and meshing with them,is the beveledcog-wheel lEI, mounted without keying on a pivot, h, which projectssail-spindle. The sail-spindle is mounted in standards g g', rising fromthe cap a3.

In the standards g is horizontally keyed, eccentrically with thesail-spindle, 'the spindle t' of thedirecting-vane I.. Attached to theshankof this vane, and projecting at right angles therewith, is the wingJ, which is iuclined like the sails, but preferably in the oppositedirection.

The wing J is kept in a comparatively upright position by the adjustableweight j, sleeved on the tailpiecej, which weight, howw ever, isovercome when a very strong wind. strikes the wing, the depressionthereby of ii :1- wing causing the brake-shoe J' to impinge upon theshaft c5, and rotating the vane on its own axis, so that it presents aplowing or saillike surface to the wind, which diminishes the resistanceof the vane without destroying it.

The operation of my invention is as follows: The rotation of thewindmill-cap, were the `at right angles from a sleeve, h', keyed to theIOO wheel H keyed to its shaft, and thus made inoperative, would, if therotation of the said cap could take place, of course cause a differentspeed in the concentric shafts relatively to each other from that whichthey' would have when the windmill.-cap was stationary 5 but as thexedIy-niountcd shaft is geared to the concentric shafts so as to beoperated by them when the windmill-cap is stationary, it is equally amatter of course that the change in the relative speeds of theconcentric shafts could not actually take place, and that consequentlythe revolution of the windmill-cap could not actually take place. Now,as the xedlymounted shaft is operated from the sail -spindle through twosystems of gearing,

and as the desired change in the relative speeds of the concentricshafts is not permitted at the lower junction of these two systems ofgearing, such change of relative speeds must be provided for, if at all,at the otherthat is, the upper-junction'ofsaid systems. Accord- ,ingiythe wheel H is allowed free revolution on its axis, and thus the systemof gearing connectingit with one of the concentric shafts can gain thespeed which it is necessary for the counterpart system of gearing to'lose in order to allow of the rotation ofthe windmillcap.

As the shafts c5 and f5 are not keyed to the sail-spindle, it willbe-obvious that no motion can be imparted to them, except through thesleeve h and its revolving` arm, which constitutes the pivot h of thewheel H, and as the pivot of the wheel H is always positively revolvedaround its own axis-viz., the sail-spindle--no motion of the revolvingsail-frame is lost, whatever apportionment'of said motion may be madebetween thejtwo systems of gearing.

Obviously if the concentric shafts were used to transmitpower toseparate, continuous, and equal work the l'ixedly-mounted shaft could bedispensed with without altering the principle of the operation of theWheelH and those of the connections which have been above referred to inexplaining the operation of my invention.

When the brake-shoe impinges upon the shaft e5 with sufficient force thewheel e of course stops rotating, and the wheel E is forced to revolve,notwithstanding the speed-apportoning function of the wheel H by itsconnection with the wheel d.

As the wheels E and c interlock, and as the former revolves while thelatter does not, the latter must revolve around the axis of the former.In order to do this, it must carry with it the windmill-cap, on which itis mounted, the pivot of the cap being concentric with that of the wheelE.

When the brake-shoe impinges upon the shaft c5 and the cap is rotated,as just explained, the vane is thrown with an ever-increasing leverageagainst the wind, the result being that the vane, before reaching aposition at right angles to the wind, furnishes a resistance to therotation of the cap which more than counter-balances the effect of thebrake,

the wing of which presents an everdecreasing resistance, thus compellingthe wheel e, which is locked with the ever-rotating wheel E, itself torotate. opposing forces overcome each other the cap vibrates, presentingthe sail-frameobliquely to the wind for the purpose of diminishing thesum total ofthe resistance on the sails.

Obviously the power and the work may be connected with my device forconverting motion at ends of said device opposite to those to which theyare connected in the windmill above described. v

Having thus described my invention, what claim as new, and desiretosecure by Letters Patent, is-

l. rlfhe combination of the shafts B and O with the spindle G, pivotedconcentrically with said shafts and operating them through mechanismconnected to said spindle on opposite sides of its pivot, substantiallyas set forth.

2. The combination of a pair of concentric shafts, a pair of bevel-wheelsleeves, e5 and f5,

for operating said shafts, and the wheel H, substantially as set forth.l 3. The combination of a ixedly-mounted shaft, D, a pair of concentricshafts, a pair of bevel-wheel sleeves, c5 and f5, for operating saidconcentric shafts, and the wheel H, substantially1 as set forth.

, LUDWIG PETTERSON. Witnesses:

GEO. R. GUTLER, W. C. ConLIEs.

Between the points at which these'

